2026 Chevrolet Tahoe Technical Service Bulletins

215 technical service bulletins (TSBs) are on record for the 2026 Chevrolet Tahoe. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11025755Nov 20, 2025Other or unknown. This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center.
• 11025653Nov 20, 2025Other or unknown. Certain vehicles listed above may have a condition in which hard braking may unexpectedly engage. Dealers will reprogram the Image Processing Module.
• 11025647Nov 19, 2025Other or unknown. Certain vehicles listed above may have a condition in which hard braking may unexpectedly engage. Dealers will reprogram the Image Processing Module.
• 11025604Nov 18, 2025Steering. Certain vehicles may have a condition in which the Upper Intermediate Steering Shaft Bolt is below torque specification. Dealers will torque the Upper Intermediate Steering Shaft Bolt to specification.
• 11025584Nov 14, 2025Other or unknown. This preliminary information communicates an issue with a Service Brake system message and DTC C0597 C055F. Dealers are to replace the brake master cylinder.
• 11025580Nov 13, 2025Other or unknown. This is a diagnostic PI to assist on a repair to fix a concern for the HVAC temperature doors binding at times
• 11025574Nov 13, 2025Other or unknown. This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display
• 11025577Nov 12, 2025Other or unknown. This is a diagnostic PI to assist on a repair to fix a concern for the HVAC temperature doors binding at times
• 11025572Nov 11, 2025Other or unknown. This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display
• 11025459Nov 7, 2025Other or unknown. This preliminary information communicates an issue with a Service Brake system message and DTC C0597. Dealers are to replace the brake master cylinder.
• 11025453Nov 3, 2025Other or unknown. This PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used.
• 11024781Oct 30, 2025Other or unknown. This preliminary information communicates an issue with the brake system control module calibrations not being available when the GM dealership installed brake kit RPO 5JL and explains the calibrations are only for the brake pad life monitoring system.
• 11024779Oct 30, 2025Other or unknown. PIP6091 was created to advise technicians engineering is aware of a misfire during a passing maneuver is being investigated.
• 11024771Oct 30, 2025Other or unknown. This PI communicates information that the Collision / Detection Systems will revert to default setting of Alert and Brake after an Ignition Cycle due to an Engineering change.
• 11024751Oct 30, 2025Other or unknown. This preliminary information document addresses the following:
• 11024768Oct 29, 2025Other or unknown. This PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used.
• 11024701Oct 22, 2025Other or unknown. This Preliminary information communicates an issue with high resistance in the glass breakage loop that could cause a dead battery or unwanted theft alarm. Dealers are to inspect the glass breakage loop.
• 11024700Oct 22, 2025Other or unknown. This Preliminary information communicates an issue with an aftermarket device wired into the vehicle and cause the vehicle to turn off when shifted into gear. This PI provides a diagnostic tip to inform dealership to inspect for this aftermarket device.
• 11024464Oct 18, 2025Other or unknown. This PI communicates information that the Collision / Detection Systems will revert to default setting of Alert and Brake after an Ignition Cycle due to an Engineering change.
• 11024460Oct 18, 2025Other or unknown. This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
• 11024455Oct 17, 2025Other or unknown. This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
• 11024451Oct 11, 2025Other or unknown. This Preliminary information communicates to have the dealer verify the vehicle has RPO TRG - Trailer Camera Provisions to ensure the vehicle is equipped with Turn Signal Activated Camera View.
• 11024444Oct 8, 2025Other or unknown. This preliminary information communicates an issue with the brake system control module calibrations not being available when the GM dealership installed brake kit RPO 5JL and explains the calibrations are only for the brake pad life monitoring system.
• 11024439Oct 4, 2025Other or unknown. The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
• 11023904Oct 1, 2025Other or unknown. This information provides software update information for the K73 Telematics module to correct the symptoms described.
• 11023900Sep 27, 2025Other or unknown. This Preliminary information communicates not to replace the Image processing Module if the following DTC's are history - U3000 SYM49, U1624, U0140, U023B SYM00, U053C, B1DD SYM57.
• 11023344Sep 15, 2025Other or unknown. If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing the Image processing module.
• 11023157Sep 9, 2025Other or unknown. This Preliminary Information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston.
• 11023091Sep 9, 2025Other or unknown. New Vehicle Monitoring Programs Section in IVH
• 11023146Sep 8, 2025Other or unknown. This Preliminary information communicates not to replace the Image processing Module if the following DTC's are history - U3000 SYM49, U1624, U0140, U023B SYM00, U053C, B1DD SYM57.
• 11023143Sep 8, 2025Other or unknown. This preliminarily information communication an issue with the supercruise dropping out when next to a merging lane and engineering is investigating.
• 11024387Sep 3, 2025Brakes. This informational bulletin provides information on Automated Brake Bleed and/or Brake Hydraulic Test procedure fails when attempting to perform either procedure.
• 11022782Aug 30, 2025Other or unknown. This information provides software update information for the K73 Telematics module to correct the symptoms described.
• 11022780Aug 29, 2025Other or unknown. This Preliminary information communicates possible causes for battery draw concern
• 11022769Aug 26, 2025Other or unknown. This Preliminary information communicates information on vehicle speed being limited due to aftermarket lower kit being installed on the vehicle.
• 11022138Aug 22, 2025Other or unknown. This Preliminary information communicates the active safety features and/or cameras are inoperative or unavailable after a 12 volt battery replacement or battery charge after a low voltage condition.
• 11022130Aug 19, 2025Other or unknown. Diagnostic Guidance for U3000-97 Long Range Radar Blocked
• 11022086Aug 15, 2025Other or unknown. This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener. Engineering is working on a new module.
• 11022084Aug 14, 2025Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
• 11022068Aug 8, 2025Other or unknown. This Preliminary information communicates an issue with super cruise unavailable due to the driver's monitoring camera and dealers to replace the camera.
• 11021792Aug 7, 2025Other or unknown. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/or C0775.
• 11021314Jul 30, 2025Other or unknown. PI to explain normal operation for a concern that the outside rearview mirrors may not fold when the doors are locked, due to the personalization settings for Auto Door Unlocking.
• 11021312Jul 29, 2025Other or unknown. This Preliminary information communicates an issue with the Hydrastar Electric Over Hydraulic trailer brake system causing a voltage spike into the trucks electrical system which is causing DTC C1114 to set.
• 11020809Jul 18, 2025Other or unknown. This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
• 11020811Jul 16, 2025Other or unknown. This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
• 11020681Jul 2, 2025Other or unknown. This information provides software update information for the K73 Telematics module to correct the symptoms described.
• 11019872Jun 26, 2025Other or unknown. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
• 11019846Jun 19, 2025Other or unknown. This Preliminary information communicates a diagnostic tip on how to resolve a issue of the horn sounding when vehicle doors are being closed and the key in vehicle reminder set to off.
• 11019823Jun 10, 2025Other or unknown. This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.
• 11019693Jun 9, 2025Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

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